68
16. The HHC Base Unit will prompt the operator to apply pre-
cision voltage values to specific terminals, data collection
will take a few seconds then the HHC will prompt the oper-
ator to move to the next step in the following sequence :
a. Apply 0.000 volts to the voltage input jacks press
ENTER
b. Apply 10.000 volts to the voltage input jacks press
ENTER
17. If using a different voltage standard for 0-30 volt calibra-
tion: POWER DOWN THE VOLTAGE STANDARD AND
DISCONNECT INPUT TERMINALS
18. Connect the negative lead of the voltage standard capable
of delivering up to 30.000v DC to the black ringed “COM”
input jack
19. Connect the positive lead of the voltage standard to the
red ringed “0-33Vdc In” jack
20. Power on the voltage standard and allow it to warm up to
its specified accuracy as defined by the manufacturer.
21. The HHC Base Unit will prompt the operator to apply
precision voltage and current values to specific terminals,
data collection will take a few seconds then the HHC will
prompt the operator to move to the next step in the follow-
ing sequence :
a. Apply 0.000 volts to the voltage input jacks press
ENTER
b. Apply 30.000 volts to the voltage input jacks press
ENTER
22. POWER DOWN THE VOLTAGE STANDARD AND DIS-
CONNECT THE VOLTAGE STANDARD FROM THE VOLT-
AGE INPUT TERMINALS
23. Connect the negative lead of the current source to the
black ringed “COM” input jack
24. Connect the positive lead of the current source to the red
ringed “0-22mA In” jack
25. Power on the DC current source capable of delivering up
to 20.000mA and allow it to warm up to its specified accu-
racy as defined by the manufacturer
26. The HHC Base Unit will prompt the operator to apply pre-
cision current values to specific terminals, data collection
will take a few seconds then the HHC will prompt the oper-
ator to move to the next step in the following sequence :
a. Apply 0.000 mA to the current input jacks press
ENTER
b. Apply 20.000 mA to the current input jacks press
ENTER
27. This is the final data taking process of system field calibra-
tion. It is now necessary to save the newly calculated coef-
ficients.
28. POWER DOWN THE CURRENT STANDARD AND DIS-
CONNECT FROM THE INPUT TERMINALS
NOTE: If you wish to abort this process and not change
the present calibration coefficients, press “ESC” and then
“MENU” to return to the main menu
29. The HHC Base will prompt the operator to apply the
calibration data .
30. Press “ENTER” and the calibration data will be saved to
system EEPROM. A message will appear on the screen
as the data is written to memory
31. Field Calibration is now compete.
32. If desired repeat the “As Found” procedure to document
“As Left” data.
SECTION 15 n.
CALIBRATE BASE UNIT CONT.
Summary of Contents for PTE-2
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